Effect of silicon on the elastic-plastic transition of GaAs crystal

D. Chrobak; J. Räisänen; R. Nowak

doi:10.1016/j.scriptamat.2015.02.007

Effect of silicon on the elastic-plastic transition of GaAs crystal

D. Chrobak^*
, J. Räisänen
, R. Nowak

^*Corresponding author for this work

Department of Chemistry and Materials Science

Research output: Contribution to journal › Article › Scientific › peer-review

8 Citations (Scopus)

Abstract

Effect of silicon doping on the elastic-plastic transition of GaAs crystal is demonstrated by results of nanoindentations and ab initio simulations. The experiments show that an increase of silicon concentration causes a decrease of the contact pressure at the onset of permanent deformation of GaAs nanovolume. We found the substitutional Si point defects to decrease the pressure of GaAs-I → GaAs-II phase transformation, which proves the elastic-plastic transition of Si-doped GaAs crystal is a phase-change-driven phenomenon.

Original language	English
Pages (from-to)	31-34
Number of pages	4
Journal	Scripta Materialia
Volume	102
DOIs	https://doi.org/10.1016/j.scriptamat.2015.02.007
Publication status	Published - 1 Jun 2015
MoE publication type	A1 Journal article-refereed

Keywords

Ab initio calculations
Compound semiconductors
Lattice defects
Nanoindentation
Phase transformations

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10.1016/j.scriptamat.2015.02.007

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title = "Effect of silicon on the elastic-plastic transition of GaAs crystal",

abstract = "Effect of silicon doping on the elastic-plastic transition of GaAs crystal is demonstrated by results of nanoindentations and ab initio simulations. The experiments show that an increase of silicon concentration causes a decrease of the contact pressure at the onset of permanent deformation of GaAs nanovolume. We found the substitutional Si point defects to decrease the pressure of GaAs-I → GaAs-II phase transformation, which proves the elastic-plastic transition of Si-doped GaAs crystal is a phase-change-driven phenomenon.",

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author = "D. Chrobak and J. R{\"a}is{\"a}nen and R. Nowak",

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T1 - Effect of silicon on the elastic-plastic transition of GaAs crystal

AU - Chrobak, D.

AU - Räisänen, J.

AU - Nowak, R.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Effect of silicon doping on the elastic-plastic transition of GaAs crystal is demonstrated by results of nanoindentations and ab initio simulations. The experiments show that an increase of silicon concentration causes a decrease of the contact pressure at the onset of permanent deformation of GaAs nanovolume. We found the substitutional Si point defects to decrease the pressure of GaAs-I → GaAs-II phase transformation, which proves the elastic-plastic transition of Si-doped GaAs crystal is a phase-change-driven phenomenon.

AB - Effect of silicon doping on the elastic-plastic transition of GaAs crystal is demonstrated by results of nanoindentations and ab initio simulations. The experiments show that an increase of silicon concentration causes a decrease of the contact pressure at the onset of permanent deformation of GaAs nanovolume. We found the substitutional Si point defects to decrease the pressure of GaAs-I → GaAs-II phase transformation, which proves the elastic-plastic transition of Si-doped GaAs crystal is a phase-change-driven phenomenon.

KW - Ab initio calculations

KW - Compound semiconductors

KW - Lattice defects

KW - Nanoindentation

KW - Phase transformations

UR - https://www.scopus.com/pages/publications/84926138544

U2 - 10.1016/j.scriptamat.2015.02.007

DO - 10.1016/j.scriptamat.2015.02.007

M3 - Article

AN - SCOPUS:84926138544

SN - 1359-6462

VL - 102

SP - 31

EP - 34

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Effect of silicon on the elastic-plastic transition of GaAs crystal

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Effect of silicon on the elastic-plastic transition of GaAs crystal

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Raw Materials Research Infrastructure

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